I’m delighted to share this milestone achievement with our valued partners, stakeholders, and customers,” commented Marcio Manique, global business director, Consumer & Professional Protection for Dyneema® at Avient.

NOTICE OF 2019 ANNUAL MEETING OF SHAREHOLDERS AND PROXY STATEMENT PolyOne Corporation MESSAGE FROM OUR CEO Your vote is very important. Independent Registered Public Accountant Services and Related Fee Arrangements Report of the Audit Committee The Audit Committee of the Board of Directors Director Independence Lead Director Board Leadership Structure Board’s Oversight of Risk Code of Ethics, Code of Conduct and Corporate Governance Guidelines Communication with Board Board and Committees Board Attendance Board Committees AAudit Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 9 Compensation Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 5 MEMBERS: Nominating and Governance Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 4 Environmental, Health and Safety Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 3 Board Refreshment 0% 20% 40% 60% 80% 100% 5 or fewer 6 to 10 More than 10 Years of Service NON-EMPLOYEE DIRECTOR COMPENSATION 2018 NON-EMPLOYEE DIRECTOR COMPENSATION Role Annual Cash Retainers 2018 Director Compensation Table Fees Earned or Paid in Cash Stock Awards Total (1) NON-EMPLOYEE DIRECTOR COMPENSATION Fees Earned or Paid in Cash (column (a)) Stock Awards (column (b)) Option Awards Outstanding and Fully-Vested Deferred Shares Number of Deferred Shares(1) Beneficial Ownership of Our Common Shares Owned(1) Right to Acquire Shares Total Beneficial Ownership Name and Address Shares % of Shares Stock Ownership Guidelines for Non-Employee Directors Section 16(a) Beneficial Ownership Reporting Compliance Executive Summary Name Title How Pay is Tied to Company Performance. Requests for copies of such Annual Report on Form 10-K or for information on how to obtain directions to be able to attend the Annual Meeting and vote in person should be directed to: PolyOne Center, 33587 Walker Road, Avon Lake, Ohio 44012, Attention: Secretary.

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; employee separation costs resulting from personnel reduction programs, plant phase-in costs, executive separation agreements; asset impairments; mark-to-market adjustments associated with actuarial gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties, remediation costs and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, joint ventures and equity investments; gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; unrealized gains and losses from foreign currency option contracts; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results. (2) Tax adjustments include the net tax expense (benefit) from one-time income tax items and deferred income tax valuations allowance adjustments.

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Patterson added, "The integration will be swift and seamless, as we leverage our existing TPE know-how, global reach, and commercial expertise to help our customers in new and innovative ways." You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. SEC Filings

CLEVELAND – September 13, 2018 – Before PolyOne introduced Versaflex™ XP shock absorbing TPEs to the market, it reached out to an independent testing lab to understand just how well these new materials perform relative to TPUs, one of the most commonly used materials in phone cases. Results showed Versaflex™ XP shock absorbing TPEs absorbed up to 10 percent more impact than TPU at drop heights of 4 – 8 feet, and over 25 percent more impact at 10 – 14 feet. In addition, the tests showed that a case made with Versaflex XP TPE dropped from 14 feet performs nearly the same as a TPU case dropped from 10 feet.

You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. Over the last 10 years, our multiple has expanded as we have progressed in our portfolio transformation. In addition, operating income before the effect of special items is a component of Avient’s annual and long-term employee incentive plans and is used in debt covenant computations.

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These solutions are made with bio-derived polymers, including polypropylene, polyethylene, polycarbonate, acrylonitrile butadiene styrene (ABS), and styrenics, with bio-derived content ranging from 70% to 100%. The ISCC PLUS certification is another milestone in our commitment to supporting healthcare product manufacturers and brand owners in achieving their sustainability targets. The ISCC PLUS certification is a voluntary system applicable to the bioeconomy and circular economy for food, feed, chemicals, plastics, packaging, textiles, and renewable feedstock derived from a process using renewable energy sources.